An Uninterrupted Power Supply (UPS) power supply system is provided, which includes: a filter module connected to a mains supply and configured to filter an input from the mains supply; a BOOST module, where a first terminal of the BOOST module is connected to the filter module via a first switch group and connected to a battery via a second switch group, and a second terminal of the BOOST module is connected to a positive bus and a negative bus; and a bi-directional Direct Current/Direct Current (DC/DC) module, where a first terminal of the bi-directional DC/DC module is connected to the battery, and a second terminal of the bi-directional DC/DC module is connected to the positive bus and the negative bus.
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May 23, 2017
October 22, 2019
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